What is fermentation, Biology

Assignment Help:

What is Fermentation ?

Fermentation is a process used by anaerobic organisms and certain cells of aerobic organisms, such as muscle cells deprived of oxygen, to obtain additional energy from the glycolytic pathway. In other words, if there is no oxygen to accept electrons at the end of the electron transport system, all of the NAD available will be bound in reduced form, and cells must turn to glycolysis to supply ATP. As you have learned, glycolysis requires NAD+, in order to oxidize (remove electrons from) G3P to form 3PG. Oxidizing G3P forms NADH + H+. NAD+ must then be regenerated to allow glycolysis to continue.

In one type of fermentation, NADH + H+ reduce pyruvate to form either lactic acid or ethanol, depending upon the organism, plus NAD+. This regenerates NAD+, allowing glycolysis to continue. Lactic acid is the end point in overused muscle tissue; ethanol (ethyl alcohol) during fermentation of beer or wine. The reactions are as follows:

Pyruvate +  NADH + H+→lactic acid + NAD+

or

Pyruvate + NADH + H+→ ethanol + CO2 + NAD+

 

 


Related Discussions:- What is fermentation

Porifera, how to write character of porifera

how to write character of porifera

Do the arteries that carry blood from the heart to the lungs, Do the arteri...

Do the arteries that carry blood from the heart to the lungs have arterial or venous blood? What happens to the blood when it passes through the lungs? Arteries of the pulmonar

Which process is called "reverse osmosis", When water containing impurities...

When water containing impurities is forced against a filter that allows only water through, this process is called "reverse osmosis". Why is this a good description of what is happ

Kingdom protista, how many phylum does kingdom protista has?

how many phylum does kingdom protista has?

What is the difference between taeniasis and cysticercosis, Q. What is the ...

Q. What is the difference between taeniasis and cysticercosis? The Taeniasis is the parasitic disease caused by the adult tapeworm installed within the human intestine. The

Define the dietary requirements of phosphorus, Define the Dietary Requireme...

Define the Dietary Requirements of phosphorus? We read in the previous section that the requirements of phosphorus are closely linked with those of calcium. The phosphorus req

Advantage and disadvantages of fensom and spanner, Advantage and disadvanta...

Advantage and disadvantages of Fensom and Spanner Electroosmotic Flow Hypothesis The model has several advantages over Munch's model. The presence of P- proteins, and the occl

Membrane perforation of sinus graft surgery, Membrane Perforation of sinus ...

Membrane Perforation of sinus graft surgery it is the most common complication during the sinus graft surgery resulting from the scoring of lateral access window for surgery an

Measurement of functional property of fats and oil, Measurement of Function...

Measurement of Functional Property of fats and oil Fats and oils have several functional properties that affect the quality of processed foods. In deep fat frying, the roles p

Method of dna techonology tp improve lives of humans, List three ways that ...

List three ways that DNA technology could be used to improve the lives of humans. Answers could include: identifying human remains, determining a person's paternity, tracing h

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd